//
//  Header.h
//  SFQuestion
//
//  Created by sr liu on 2021/7/18.
//

#ifndef Header_h
#define Header_h

public class ListNode {
      public var val: Int
      public var next: ListNode?
      public init(_ val: Int) {
          self.val = val
          self.next = nil
     }
 }

#endif /* Header_h */
